<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="描述" prop="description">
        <el-input
          v-model="queryParams.description"
          placeholder="请输入描述"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="跳转路径" prop="topath">
        <el-input
          v-model="queryParams.topath"
          placeholder="请输入跳转的路径"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="是否显示" prop="isshow">
        <el-input
          v-model="queryParams.isshow"
          placeholder="请输入是否显示"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item label="创建时间" prop="createTime">
        <el-date-picker
          clearable
          v-model="queryParams.createTime"
          type="date"
          value-format="yyyy-MM-dd"
          placeholder="请选择创建时间"
        >
        </el-date-picker>
      </el-form-item>
      <el-form-item label="更新时间" prop="updateTime">
        <el-date-picker
          clearable
          v-model="queryParams.updateTime"
          type="date"
          value-format="yyyy-MM-dd"
          placeholder="请选择更新时间"
        >
        </el-date-picker>
      </el-form-item>

      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
        
          >删除</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini"
          >导出</el-button
        >
      </el-col>
      <el-button
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></el-button>
    </el-row>
    <el-table
      v-loading="loading"
      :data="bannerList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="编号" align="center" prop="id" />
      <el-table-column label="图片" align="center" prop="bannerimg" width="100">
        <template slot-scope="scope">
          <img
            :src="$baseUrl + '/' + scope.row.bannerimg"
            :width="50"
            :height="50"
          />
        </template>
      </el-table-column>

      <el-table-column label="描述" align="center" prop="description" />
      <el-table-column label="跳转路径" align="center" prop="topath" />
      <el-table-column label="是否显示" align="center" prop="isshow">
      <template slot-scope="scope">
        <el-tag v-if="scope.row.isshow==1">是</el-tag>
      
        <el-tag v-else>否</el-tag>
      </template>
      </el-table-column>
      <!-- <el-table-column label="创建人" align="center" prop="createBy" /> -->
      <el-table-column label="创建时间" align="center" prop="createTime" />
      <!-- <el-table-column label="更新人" align="center" prop="updateBy" /> -->
      <el-table-column
        label="更新时间"
        align="center"
        prop="updateTime"
        width="180"
      />
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
        
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
          
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <el-pagination
      small
      v-show="total > 0"
      :total="total"
      :current-page.sync="queryParams.pageNum"
      :page-size.sync="queryParams.pageSize"
      background
      layout="prev,pager,next"
      @current-change="getList"
    />

    <!-- 添加或修改banner对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="图片" prop="bannerimg">
          <!-- 图片上传 -->
          <el-upload
            class="avatar-uploader"
            :action="$baseUrl + '/upload'"
            :headers="{ Authorization: 'Bearer ' + $store.getters.token }"
            :show-file-list="false"
            :on-success="handleAvatarSuccess"
            :before-upload="beforeAvatarUpload"
          >
            <img
              v-if="form.bannerimg"
              :src="$baseUrl + '/' + form.bannerimg"
              class="avatar"
              height="80"
              width="80"
            />
            <i v-else class="el-icon-plus avatar-uploader-icon" height="80" width="80"></i>
          </el-upload>
      
        </el-form-item>
        <el-form-item label="描述" prop="description">
          <el-input v-model="form.description" placeholder="请输入描述" />
        </el-form-item>
        <el-form-item label="跳转路径" prop="topath">
          <el-input v-model="form.topath" placeholder="请输入跳转的路径" />
        </el-form-item>
        <el-form-item label="是否显示到主页" prop="isshow">
          <template>
            <el-radio v-model="form.isshow" label="1">是</el-radio>
             <el-radio v-model="form.isshow" label="0">否</el-radio>
          </template>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listBanner,
  getBanner,
  delBanner,
  addBanner,
  updateBanner,
} from "@/api/system/banner";

export default {
  name: "Banner",

  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // banner表格数据
      bannerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 5,
        bannerimg: null,
        description: null,
        topath: null,
        isshow: null,
        createTime: null,
        updateTime: null,
      },
      baseUrl: this.$baseUrl,
      // 表单参数
      form: {
        // bannerimg,
        // description,
        // topath,
        // isshow
      },
      // 表单校验
      rules: {},
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询banner列表 */
    getList() {
      this.loading = true;
      listBanner(this.queryParams).then((response) => {
        this.bannerList = response.data.rows; //分页数据
        this.total = response.data.totalsize; //总条数
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },

    // 头像上传
    handleAvatarSuccess(res, file) {
      //上传成功之后的回调函数
      // this.imageUrl = URL.createObjectURL(file.raw);
      this.form.bannerimg = res.data;
      console.log(this.form.bannerimg);
    },
    beforeAvatarUpload(file) {
      //限制文件类型及大小
      const isJPG = file.type === "image/jpeg";
      const isLt2M = file.size / 1024 / 1024 < 2;

      if (!isJPG) {
        this.$message.error("上传头像图片只能是 JPG 格式!");
      }
      if (!isLt2M) {
        this.$message.error("上传头像图片大小不能超过 2MB!");
      }
      return isJPG && isLt2M;
    },
    handleAvatarSuccess1(res, file) {
      //上传成功之后的回调函数
      // this.imageUrl = URL.createObjectURL(file.raw);
      this.form.bannerimg = res.data;
      console.log(this.form.bannerimg);
    },
    beforeAvatarUpload1(file) {
      //限制文件类型及大小
      const isJPG = file.type === "image/jpeg";
      const isLt2M = file.size / 1024 / 1024 < 2;

      if (!isJPG) {
        this.$message.error("上传头像图片只能是 JPG 格式!");
      }
      if (!isLt2M) {
        this.$message.error("上传头像图片大小不能超过 2MB!");
      }
      return isJPG && isLt2M;
    },

    // 表单重置
    reset() {
      this.form = {
        id: null,
        bannerimg: null,
        description: null,
        topath: null,
        isshow: 0,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
      };
      this.$nextTick(() => {
        this.$refs["form"].resetFields();
      });
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      // this.resetForm("queryForm");
      this.$nextTick(() => {
        this.$refs["queryForm"].resetFields();
      });
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.id);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加banner";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids;
      getBanner(id).then((response) => {
        this.form = response.data;
        this.open = true;
        this.title = "修改banner";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.id != null) {
            updateBanner(this.form).then((response) => {
              this.$message({ type: "success", message: "修改成功" });
              // this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addBanner(this.form).then((response) => {
              this.$message({ type: "success", message: "新增成功" });
              // this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      //删除提示框
      this.$confirm('是否确认删除banner编号为"' + ids + '"的数据项？', "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(function () {
          return delBanner(ids);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
  },
};
</script>